Question

найдите f(0), f(1,5) и f(-1), если f(x)= x-0,5
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x+0,5

Answer 1

$f(x)= frac{x-0.5}{x+0.5}$
f(0)=(1-0.5)/(1+0.5)=0.5/1.5=1/3
f(1.5)=(1.5-0.5)/(1.5+0.5)=1/2=0.5
f(-1)=(-1-0.5)/(-1+0.5)=-1.5/(-0.5)=3